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codeLive: Positive and negative testing
- 1. CodeLive with Salesforce Developers August 28, 2019 Positive and Negative Testing with Kevin Poorman & Melissa Mueller
- 2. Melissa Mueller @AstroLovesCodey Developer Evangelist, Salesforce.com Thinks in code. Often NPE’s CodeLive with Melissa Mueller & Kevin Poorman Kevin Poorman @codefriar Stays cool as a Software Engineer at Mitsubishi Electric Trane HVAC USA
- 3. Introductions FLS Sing-a-long Explanation of the problem Coding our solution Recap Talking about what we’re gonna talk about. #meta Today’s Agenda
- 4. This presentation may contain forward-looking statements that involve risks, uncertainties, and assumptions. If any such uncertainties materialize or if any of the assumptions proves incorrect, the results of salesforce.com, inc. could differ materially from the results expressed or implied by the forward-looking statements we make. All statements other than statements of historical fact could be deemed forward-looking, including any projections of product or service availability, subscriber growth, earnings, revenues, or other financial items and any statements regarding strategies or plans of management for future operations, statements of belief, any statements concerning new, planned, or upgraded services or technology developments and customer contracts or use of our services. The risks and uncertainties referred to above include – but are not limited to – risks associated with developing and delivering new functionality for our service, new products and services, our new business model, our past operating losses, possible fluctuations in our operating results and rate of growth, interruptions or delays in our Web hosting, breach of our security measures, the outcome of any litigation, risks associated with completed and any possible mergers and acquisitions, the immature market in which we operate, our relatively limited operating history, our ability to expand, retain, and motivate our employees and manage our growth, new releases of our service and successful customer deployment, our limited history reselling non-salesforce.com products, and utilization and selling to larger enterprise customers. Further information on potential factors that could affect the financial results of salesforce.com, inc. is included in our annual report on Form 10-K for the most recent fiscal year and in our quarterly report on Form 10-Q for the most recent fiscal quarter. These documents and others containing important disclosures are available on the SEC Filings section of the Investor Information section of our Website. Any unreleased services or features referenced in this or other presentations, press releases or public statements are not currently available and may not be delivered on time or at all. Customers who purchase our services should make the purchase decisions based upon features that are currently available. Salesforce.com, inc. assumes no obligation and does not intend to update these forward-looking statements. Statement under the Private Securities Litigation Reform Act of 1995 Forward-Looking Statement
- 5. Let’s be Positive about Negative Testing! Positive and Negative Unit Testing for fun and profit.
- 6. Positive Tests Are you sure? Positive.
- 7. Negative Tests Are you sure? … Yes.
- 8. Goals: High Test coverage Confidence that our code works as expected Confidence that our code fails when, and how we expect Our solution. Let’s write some tests
- 9. https://github.com/sfcodelive/positiveAndNegativeTesting We’re working with this project:
- 10. This way to the code In case Kevin forgets, this is where we (finally) get away from the slides and to the coding bits.
- 11. Today we Identify properly scoped ‘units’ for unit testing Write useful positive unit tests Write useful negative unit tests TESTED ALL THE THINGS
- 12. Key Takeaways Unit testing helps you craft better software A unit isn’t necessarily an entire method. Positive unit tests build confidence that your code works as expected with a known set of inputs. Negative unit tests build confidence that your code fails how, and when it should. Remember this!
- 13. Complete the testing Trailmix: https://sforce.co/positive-negative- testing trailhead.salesforce.com Check out the code at: https://github.com/sfcodelive/positiveAndNegativeTesting